US4423630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic power monitor
Assignee: Individual
•
Filing: 1981-06-19
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Granted: 1984-01-03
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Expires: 2001-06-19
Abstract
Abstract A cyclic power monitor measures a cyclically applied force applied by animal muscle power to a device and calculates the work done by the application of the force. The time between cyclic applications of the force is calculated to produce a value which may be used to divide the calculated work to calculate applied power. An indicating device may be employed to indicate departure in applied power from a predetermined value. A cadence alarm may be employed by itself or in combination with the cyclic power monitor to indicate departures in cadence of the pedalling effort from a predetermined value of cadence. In addition, departures in the force applied to the device from a predetermined force may also produce an indication for the operator.
Inventors
- 👤 Thomas R. Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:06
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/22; A61B5/221; B; B62; B62J; B62J45/00; B62J45/40; B62J45/41; B62J45/411; B62J45/413; B62J45/42; B62J45/421; Y; Y10; Y10S; Y10S482/00; Y10S482/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
Apparatus for measuring athletic performance of a bicycle rider comprising: means for sensing a force on a pedal of a bicycle effective to produce a force signal related to a force applied to said pedal by said bicycle rider; means responsive to said force signal for detecting a predetermined event in each rotation of a pedal crank of said bicycle and for producing an output signal in response; means responsive to said output signal for calculating a period between said events; and means responsive at least to said period for calculating at least one parameter of said athletic performance.
Claim 2
Dependent Claim
99 words
Apparatus for measuring athletic performance of a bicycle rider comprising: means for sensing a force on a pedal of a bicycle effective to produce a force signal related to a force applied to said pedal by said bicycle rider; means responsive to said force signal for detecting a predetermined event in each rotation of a pedal crank of said bicycle and for producing an output signal in response; means responsive to said output signal for calculating a period between said events; and means responsive at least to said period for calculating at least one parameter of said athletic performance.
Claim 3
Dependent Claim
20 words
Apparatus according to claim 1 wherein said means responsive at least to said period includes means for calculating a cadence.
Claim 4
Dependent Claim
33 words
Apparatus according to claim 2 wherein said means responsive at least to said period includes means responsive to said force signal and said cadence for calculating a power output of said bicycle rider.
Claim 5
Dependent Claim
18 words
Apparatus according to claim 2 wherein said means for calculating a cadence includes means for indicating said cadence.
Claim 6
Dependent Claim
33 words
Apparatus according to claim 1 wherein said means responsive at least to said period includes means responsive to said force signal and said period for calculating a power output of said bicycle rider.
Claim 7
Dependent Claim
42 words
Apparatus according to claim 5 wherein said means for calculating a power output includes means for comparing said power output with at least one threshold value of power output and for producing an indication in dependence on a result of said comparing.
Claim 8
Dependent Claim
16 words
Apparatus according to claim 1 wherein said apparatus comprises a unitary package attachable to said pedal.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |